You start with 100%, add 80% for the increase and you get 180%, take away 40% for the decrease and you get 140%
Answer:
Again every triangle is 180° and so is every straight line, so 180-105 is 75° so 75°+85° is 160 and 180-160 is 20° so your missing angle is 20°
Yes is H because the symbol mean equal or less than
